I have two of these with the planet audio ac1200.2 making 840 rms. This is the loudest system I have ever owned. I have had Rockford fosgate, alpine, JL audio, and kenwood and this tops them all. These subs will not hit 12 Hz but they do hit lower than most 12 inch subs I’ve ever seen. If you have a good amplifier buy these subs. You have nothing to lose. They are only $60!!!
